Asahi Super Dry Kinkin Cold-Feeling Tumbler Set of 2 Capacity: Approximately 380ml The tumbler changes color when the temperature drops below approximately 5°C. Silver tumbler with a cold-sensing function. Please note that there may be initial scratches and slight box damage. One is completely unopened. The other has been opened to check the contents only. The price has been reduced to reflect this, but please refrain from purchasing if you are concerned.